Practical, commercial, and cross-border insight for entrepreneurs, investors and growing companies
We advise entrepreneurs, investors, and growing companies on the full spectrum of UK business tax matters. From early-stage structuring and employee incentives through to sale, succession, or cross-border expansion, our approach is pragmatic, technically robust and commercially focused.
Our clients range from UK owner-managed businesses to international groups with complex cross-border footprints. Many are connected to the US or Europe, where our integrated international tax team provides seamless coordination across jurisdictions.
Areas we cover
Tax valuations
Employee share schemes
Tax efficient fundraising
Corporate reconstructions
Pre and post exit transaction tax support
Succession planning, including employee ownership trusts, management buyouts and the availability of business property relief
Cross border tax issues
Expanding to or from the UK
Financing operations
Our approach
Our approach integrates corporate, shareholder and personal tax considerations into one cohesive strategy. Whether you’re growing, raising capital, or planning an exit, we ensure the tax structure supports your commercial goals at every stage.
Who we help
At Ostberg Sinclair we advise entrepreneurs, investors, and growing companies on the full spectrum of UK business tax matters. From early-stage structuring and employee incentives through to sale, succession, or cross-border expansion, our approach is pragmatic, technically robust and commercially focused.
Our clients range from UK owner-managed businesses to international groups with complex cross-border footprints. Many are connected to the US or Europe, where our integrated international tax team provides seamless coordination across jurisdictions.
- Margaret Mitchell, Gone with the Wind"...but in this world nothing can be said to be certain, except death and taxes"
More about UK business tax advisory services
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Equity Without Borders? The US–UK Tax Traps in RSUs, Restricted Shares, Growth Shares and Stock Options
30th September 2026
Cross-border equity compensation can create significant and unexpected tax liabilities. The treatment of RSUs, restricted shares, growth shares and stock options differs between the US and UK, with timing, valuations, elections and where work is performed all potentially affecting the final tax position.
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2025/26 PSA Deadline Approaching: Have You Identified the Risks?
15th September 2026
With the 22 October 2026 PAYE Settlement Agreement (PSA) payment deadline fast approaching, employers should now be reviewing all benefits, gifts and expenses provided to employees during the 2025/26 tax year.
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National Minimum Wage Compliance: Small Errors, Significant Consequences
24th September 2026
With National Minimum Wage enforcement intensifying, employers should review their pay practices and working arrangements to identify potential underpayments, particularly around uniforms, salary sacrifice, additional hours and irregular pay.
Ready to turn complexity into clarity?
We’re here to help you make informed decisions, with confidence.